复合地层隧道下穿既有地铁车站设计施工技术措施  

Technical measures for design and construction of composite stratum tunnel under-passing existing metro station

作　　者：宋南涛[1] Song Nantao

机构地区：[1]中铁二院工程集团有限责任公司地铁院,四川成都610031

出　　处：《现代城市轨道交通》2018年第6期29-32,共4页Modern Urban Transit

摘　　要：以深圳市轨道交通11号线下穿既有5号线宝华站工程为实例,详细介绍了复合地层中,"矿山法初支+盾构拼管片"隧道下穿运营地铁车站的设计施工关键技术。通过理论分析、数值计算及现场监测,证明了该工法的合理性。结果表明,通过制定严格的自动化监测标准,选取合理的辅助措施,设置试验段,控制好爆破振速,可安全下穿既有地铁车站。Taking Shenzhen rail transit line 11 under-passing the existing line 5 Baohua station project as an example, this paper introduces in detail the key technologies in design and construction of the complex stratum ＂mining methed primary support ＋ shield spell segment＂ under-passing existing metro station. Through theoretical analysis, numerical simulation and fi eld monitoring, it proves the rationality of the method. The results of the study show that through the establishment of strict automation monitoring standards, selection of reasonable auxiliary measures, set-up of the test track, and control of the blasting vibration velocity it ensures the safe constraction of under-passing the existing metro station.

关 键 词：地铁 下穿既有车站 复合地层 设计施工 技术措施 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]